Quick-mounting clamp for machining strip-shaped workpiece

Abstract

The utility model provides a quick clamp for machining strip-shaped workpieces, and belongs to the technical field of machine tools. Comprising a fixing shaft, an inserting hole located in the front end of the fixing shaft and a locking sleeve connected outside the fixing shaft in a sliding mode in the axial direction, a plurality of locking heads are evenly arranged in the inserting hole in the circumferential direction, the locking heads are connected to the hole wall of the inserting hole in a sliding mode in the radial direction of the inserting hole, and a reset spring is connected between the locking sleeve and the fixing shaft. The inner wall of the locking sleeve is provided with an avoiding step allowing the locking head to partially stretch out of the outer wall face of the fixing shaft. The fixture has the advantages of high clamping efficiency and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lathe technical field relates to a kind of fast mounting fixture for strip-shaped workpiece processing. BACKGROUND

[0002] When long strip-shaped workpiece is processed, the end far from processing position also needs to be clamped, for the processing mode that tool moves workpiece does not move, the end far from processing position of workpiece does not need accurate clamping, therefore, a tool capable of quickly realizing the clamping of the distal end of strip-shaped workpiece needs to be designed to improve processing efficiency. SUMMARY

[0003] The utility model aims at the above-mentioned problems existing in prior art, provide a kind of fast mounting fixture for strip-shaped workpiece processing, the technical problem to be solved by the utility model is how to realize the quick clamping of workpiece.

[0004] The utility model can be realized by the following technical scheme: a kind of fast mounting fixture for strip-shaped workpiece processing, characterized by including fixed shaft, the plug-in hole in the front end of fixed shaft and the locking sleeve that is slidably connected along the axis outside fixed shaft, the plug-in hole is uniformly provided with several locking heads in circumferential direction, the locking head is slidably connected on the hole wall of plug-in hole along the radial direction of plug-in hole, the locking sleeve is connected with fixed shaft between one reset spring, the locking sleeve inner wall has the avoidance step that allows the partial extension of locking head outside fixed shaft surface.

[0005] Further, the locking head includes block-shaped inner pressing plate, sliding block on the hole wall of plug-in hole and block-shaped outer pressing plate, the fixed shaft outer surface has concave sink, and the outer pressing plate can be located in the sink.

[0006] Since the distal end of long strip-shaped workpiece only needs to be preliminarily positioned and clamped, it has no higher requirements for its coaxial degree and clamping strength, in the present scheme, only need to insert the distal end of workpiece into plug-in hole when locking sleeve is pulled back, then loosen locking sleeve to complete clamping, specifically, when locking sleeve pulls back and compresses reset spring, locking head can move outward along radial direction in the presence of avoidance step, the process of inserting workpiece will inevitably cause the outward movement of locking head, after inserting workpiece, loosen locking sleeve, the process of moving locking sleeve driven by reset spring will push locking head to move inward along radial direction, in this way, inner pressing plate can compress the outer surface of workpiece, to realize the clamping of workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is the structure schematic view of the fast mounting fixture after inserting workpiece.

[0008] Figure 2 It is the structure schematic view of the fast mounting fixture in the state of allowing workpiece to be inserted lightly.

[0009] In the figure, 1, fixed shaft; 2, insert hole; 3, locking sleeve; 4, reset spring; 5, avoiding step; 6, inner pressing plate; 7, sliding block; 8, outer pressing plate. DETAILED DESCRIPTION

[0010] The following is a specific embodiment of the present application and further describes the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0011] As Figure 1 and Figure 2 The quick mounting clamp shown in the figure comprises a fixed shaft 1, an insert hole 2 located at the front end of the fixed shaft 1, and a locking sleeve 3 axially slidingly connected outside the fixed shaft 1, the insert hole 2 is uniformly provided with a plurality of locking heads in the circumferential direction, the locking heads are slidingly connected to the hole wall of the insert hole 2 in the radial direction of the insert hole 2, a reset spring 4 is connected between the locking sleeve 3 and the fixed shaft 1, and the inner wall of the locking sleeve 3 has an avoiding step 5 allowing the locking heads to partially extend out of the outer wall surface of the fixed shaft 1.

[0012] The locking head comprises a block-shaped inner pressing plate 6, a sliding block 7 sliding on the hole wall of the insert hole 2, and a block-shaped outer pressing plate 8, the outer wall surface of the fixed shaft 1 has a concave sink, and the outer pressing plate 8 can be located in the sink.

[0013] Since the distal end of the long strip-shaped workpiece only needs to be preliminarily positioned and clamped, there is no high requirement for its coaxiality and clamping strength, in the present scheme, only the distal end of the workpiece needs to be inserted into the insert hole 2 when the locking sleeve 3 is pulled back, and then the locking sleeve 3 is loosened to complete the clamping, specifically, when the locking sleeve 3 pulls back and compresses the reset spring 4, the locking head can move outward in the radial direction in the presence of the avoiding step 5, and the insertion of the workpiece will inevitably cause the outward movement of the locking head, after the workpiece is inserted, the locking sleeve 3 is loosened, and the reset spring 4 drives the locking sleeve 3 to move, which will push the locking head to move inward in the radial direction, in this way, the inner pressing plate 6 can compress the outer wall surface of the workpiece to achieve the clamping of the workpiece.

[0014] The specific embodiments described in the present application are only illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A quick-setup fixture for machining strip-shaped workpieces, characterized in that, The application relates to a fixed shaft (1), a plug-in hole (2) at the front end of the fixed shaft (1) and a locking sleeve (3) axially slidingly connected outside the fixed shaft (1), wherein the inner wall of the plug-in hole (2) is uniformly provided with a plurality of locking heads, the locking heads are slidingly connected to the hole wall of the plug-in hole (2) along the radial direction of the plug-in hole (2), a reset spring (4) is connected between the locking sleeve (3) and the fixed shaft (1), and the inner wall of the locking sleeve (3) is provided with an avoiding step (5) allowing the locking heads to partially extend out of the outer wall surface of the fixed shaft (1).

2. The quick-mounting jig for processing a strip-shaped workpiece according to claim 1, characterized in that, The locking head comprises a block-shaped inner pressing plate (6), a sliding block (7) sliding on the hole wall of the plug-in hole (2) and a block-shaped outer pressing plate (8), and the outer wall surface of the fixed shaft (1) is provided with a concave sink, and the outer pressing plate (8) can be located in the sink.

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